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Finding the Fourth Proportional to 138,441.70, 207,652.17 and 43,675.00

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Solution

The fourth proportional to 138,441.70, 207,652.17 and 43,675.00 is: 65,509.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,441.70 : 207,652.17 = 43,675.00 : x
  2. Step 2: Convert to fraction form
    138,441.70/207,652.17 = 43,675.00/x
  3. Step 3: Cross multiply
    138,441.70x = 207,652.17 × 43,675.00
  4. Step 4: Simplify right side
    138,441.70x = 9,069,207,486.49
  5. Step 5: Solve for x
    x = 9,069,207,486.49/138,441.70
  6. Step 6: Final answer
    x = 65,509.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.